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Sample Type is Mineral

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IGSN Sample Type Notes Location Number Thin Sections Storage Location
GRD0394S0 Zincite Zincite in Calcite with Franklinite New Jersey 0 Ritter 154, 12 A
GRD0395S0 Hydroxides Original Label : A rock, composed of hydrated aluminum oxides, ferric oxide, etc. This material a Norton abrasive; as a source of alums. Arkansas 0 Ritter 154, 12 B
GRD0396S0 Gibbsite Original Label : Aluminum hydroxide; plus other aluminum oxides, as well as those of iron. Occurs as a residual weathering product. Also Mining Co. Oregon 0 Ritter 154, 12 B
GRD0397S0 Hydroxides Arkansas 0 Ritter 154, 12 B
GRD0398S0 Hydroxides Unknown 0 Ritter 154, 12 B
GRD0399S0 Oxides Pisolitic Laterite. Fe-Al oxides Oregon 0 Ritter 154, 12 B
GRD039AS0 Psilomelane Psilomelane replacing Manganite Arizona 0 Ritter 154, 12 B
GRD039BS0 Hydroxides Wards Bulk Guyana 0 Ritter 154, 12 B
GRD039CS0 Oxides Manganese Oxide on Quartz, Muscovite, Cleavlandite(?) California 0 Ritter 154, 12 B
GRD039DS0 Psilomelane Psilomelane Unknown 0 Ritter 154, 12 B
GRD039ES0 Manganite Tabular Manganite Unknown 0 Ritter 154, 12 B
GRD039FS0 Oxides Pyrolucite on Perthite California 0 Ritter 154, 12 B
GRD039GS0 Oxides Botryoidal Pyrolusite, Unknown 0 Ritter 154, 12 B
GRD039HS0 Oxides Unknown 0 Ritter 154, 12 B
GRD039IS0 Oxides Pyrolucite, Hematite, Limonite, Pyrite Mexico 0 Ritter 154, 12 B
GRD039JS0 Psilomelane Pyrolucite with Psilomelane Brazil 0 Ritter 154, 12 B
GRD039KS0 Gibbsite Botryoidal Gibbsite Brazil 0 Ritter 154, 12 B
GRD039LS0 Gibbsite Brazil 0 Ritter 154, 12 B
GRD039MS0 Rutile Rutile replacing Brookeite Arkansas 0 Ritter 154, 12 B
GRD039NS0 Rutile Rutile in Quartz oriented on Hematite, excellent sample. Brazil 0 Ritter 154, 12 B
GRD039OS0 Rutile Rutile Virginia 0 Ritter 154, 12 B
GRD039PS0 Corundum Black star Corundum Canada 0 Ritter 154, 12 B
GRD039QS0 Corundum Synthetic Ruby N/A 0 Ritter 154, 12 B
GRD039RS0 Corundum Blue Star Corundum Dungannon, Ontario, Canada 0 Ritter 154, 12 B
GRD039SS0 Corundum Burminco Bulk Corundum India 0 Ritter 154, 12 B
GRD039TS0 Corundum Various pieces of Corundum all from unknown origins. Various 0 Ritter 154, 12 B
GRD039US0 Hematite Hematite Unknown 0 Ritter 154, 12 C
GRD039VS0 Hematite Hematite var. Kidney Ore Arizona 0 Ritter 154, 12 C
GRD039WS0 Hematite Massive Hematite from UCLA mineral collection Unknown 0 Ritter 154, 12 C
GRD039XS0 Hematite Hematite var. Martite. Hematite replacing Magnetite, excellent preservation of Magnetite octohedron. Unknown 0 Ritter 154, 12 C